With 10-speed I assume you have two chainwheels up front and five sprockets at the rear, although today you could have one chainwheel at the front and 10 sprockets at the rear as well.
There's really no way of telling how many teeth you have short of actually counting them, but probably between 48-53 on the big ring and about 10 less on the small ring. Chainwheels are available in just about any number of teeth counts.
Plenty of different options for that. A MTB with a triple front can have 22-32-42 to 26-36-48. An MTB rear can run from 11-34
Changing Gears Flagstaff and the Mountain Bike - 2011 was released on: USA: September 2011
Depending on the mountain bike that you have will depict the amount of gears. Most bikes for adults typically have about 21 gears. If this does no answer your question then what are levels?
No one gear is all you need, go singlespeed :)
well from my experience "if understand the question correctly" take the number of gears on the back derailleur and multiply that number with how many gears are on the front derailleur
Gears - wherever you find them - is a way of trading strength for speed, or the other way around. On a bike they let you keep pushing the pedals at a comfortable pace and effort uphill as well on the flat.
The idea behind multiple gears on a bicycle -- whether it's an older "10-speed" bike or a modern mountain bike with 24 gears -- is to let you change the distance that the bike moves forward with each pedal stroke.
Well, there's one bike called the autoshift, which looks a bit MTB-like and is supposed to do that, but a regular bike shouldn't
It depends on the bike if the engine of bike is heavy it has more gears. Usually 5 gears are max gears.
The essential features of a hybrid bike are a combination of features seen in regular bikes as well as mountain bikes. You have changing gears as well as easy to adjust chains.
2 gears
Two, but this is not the same as how many speeds the BMX bike in question has. A BMX bike has a sprocket in the front, and a cog in the back and each is a gear, but is considered a single speed bicycle because two gears and a chain are required for transmission of rotational force from the crankset to the rear wheel.
There are MTBs with 20" and 24" wheels for smaller riders, which probably is the closest thing to what you're describing. These wouldn't be BMX bicycles though, since BMX bikes don't have gears and have a taller handlebar than a mountain bike.